A research group led by Professor Yasushi Matsuzawa and Professor Kazuo Kimura of Yokohama City University has a high in-hospital mortality rate for acute myocardial infarction in low population density areas in Japan, and is transported to hospitals with abundant results of emergency catheter treatment regardless of the transportation distance. It was clarified that the prognosis was good when it was done.
Acute myocardial infarction is considered to be the leading cause of death along with heart failure among the heart diseases that account for the second largest number of deaths in Japan.According to reports in Europe and the United States, the mortality rate of acute myocardial infarction increases as the transportation distance increases and decreases when the size of the hospital receiving treatment is large.Many reports on the relationship between low population density and poor prognosis of various diseases have been reported overseas.However, in the situation peculiar to Japan, the relationship between the population density and the mortality rate of acute myocardial infarction, and the relationship between the transportation distance and the scale of the hospital were unclear, so this time we examined using big data.
This time, we participated in the "Survey on Cardiovascular Disease Treatment (JROAD / JROAD- DPC)" conducted by the Japanese Circulation Society. We entered 2012 patients with acute myocardial infarction who developed from 2015 to 64,414 in the JROAD-DPC database, and investigated the relationship between in-hospital mortality and population density, transport distance, and the scale of cardiovascular emergency in hospitals.As a result, the in-hospital mortality rate of acute myocardial infarction was high in low population density areas.However, regardless of the transport distance, when transported to a hospital with a large number of emergency catheter treatments, the prognosis was good even in areas with a low population density.
From the results of this research, it became clear that it is important to develop an emergency medical system in Japan in consideration of population density and regional disparities in the medical system.At present, it is said that centralizing the treatment of acute myocardial infarction will contribute to improving the prognosis, and it is an important finding when considering the future cardiovascular emergency medical system.
Paper information:[Circulation Journal] In-hospital mortality in Acute Myocardial Infarction According to Population Density and Primary Angioplasty Procedures Volume
